[JEE Advanced 2015] n ways 5 boys and 5 girls queue with all girls consecutive m ways
$n$ = ways $5$ boys and $5$ girls queue with all girls consecutive; $m$ = ways with exactly four girls consecutive. Find $\frac mn$.
1 Answer
VAVidaara Admin
✓ Vidaara Team
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· 2d ago
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Answer: $5$.
$n=6!\,5!$. Counting queues where exactly four girls are together (and the fifth separated) gives $m=5\,n$, so $\frac mn=5$.
JEE Advanced 2015 · Permutations and Combinations — verified solution by the Vidaara Team.
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